We are offering barytes. Barytes (or barite) is the naturally occurring mineral form of barium sulphate. Its main properties are its high specific gravity (4.5), very low solubility; it is non-toxic, and also chemically and physically unreactive. Barytes is used as a weighting agent for drilling fluids in oil and gas exploration. This meets the american petroleum institute (api) specification 13a section 2 requirement.